111202221002022 has 96 divisors (see below), whose sum is σ = 257194199089152. Its totient is φ = 34602245459712.

The previous prime is 111202221002017. The next prime is 111202221002083. The reversal of 111202221002022 is 220200122202111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111202221001986 and 111202221002004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134321883 + ... + 135147225.

It is an arithmetic number, because the mean of its divisors is an integer number (2679106240512).

Almost surely, 2^{111202221002022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111202221002022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128597099544576).

111202221002022 is an abundant number, since it is smaller than the sum of its proper divisors (145991978087130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111202221002022 is a wasteful number, since it uses less digits than its factorization.

111202221002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828962 (or 828959 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111202221002022 its reverse (220200122202111), we get a palindrome (331402343204133).

The spelling of 111202221002022 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-one million, two thousand, twenty-two".